No offense at all, it's not my car, but still it should rev faster than it does if it was a good running engine. Do you think it is the intake or maybe something else? We can get the factory intake from the junk yard if that will fix the issue. It just won't get out of it's own way right now.

Quote Originally Posted by TicketRedBB6
No offense, but it's probably because it isn't a fast motor. I used to have a 1.5L civic with an intake, and it did the same as you're saying. It took forever to get faster, but you could hear all the air coming in. Those motors stock just arent made for fast rpms.